- #1

RossJJ

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Okay, so I have obtained a particle size distribution of diesel exhaust particles on a SEM. Data has been plotted and fitted with a lognormal distribution. Although it isn't a usual path to take I have been told I must put errors on each bin height. I obviously have an error on each individual particle measurement but I am having issues converting this to an error in the frequency counts/probability.

I tried to take the errors and re-bin the particles with the error added and subtracted but was told I should follow the usual error procedure, such as adding in quadrature or something similar, other than that my supervisor was quite vague.

After many a trawl of articles and suchlike I am coming up blank, mainly because it is rather rare to use errors on a histogram, as a histogram is kind of inherent of the errors, being a distribution and whatnot.

Can anyone help please?